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The first printed photo using a halftone in a Canadian periodical, October 30, 1869
The first printed photo using a halftone in a Canadian periodical, October 30, 1869
A multicolor postcard (1899) printed from hand-made halftone plates
A multicolor postcard (1899) printed from hand-made halftone plates
This close-up of a halftone print shows that magenta on top of yellow appears as orange/red, and cyan on top of yellow appears as green.
This close-up of a halftone print shows that magenta on top of yellow appears as orange/red, and cyan on top of yellow appears as green.
Purple screens used in offset printing: Angles 90°, 105°, 165°
Purple screens used in offset printing: Angles 90°, 105°, 165°
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What appears as cerulean ( ) in the top image is actually a blend of cyan, magenta, yellow and black, as magnification under a microscope demonstrates
What appears as cerulean ( ) in the top image is actually a blend of cyan, magenta, yellow and black, as magnification under a microscope demonstrates.
A color photograph of the Teton Range.
A color photograph of the Teton Range.
Inspection CMYK colors of offset printing on a paper
Inspection CMYK colors of offset printing on a paper
Early representation of the three-color process (1902)
Early representation of the three-color process (1902)